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APPENDIX B. RED DOT HEAVY DUTY AIR CONDITIONING AND HEATING SERVICE TRAINING MANUAL
Inspection and Maintenance without gauges

Maintenance Manual For All-Terrain Crane (ATEC) Diesel Driven, 22 Ton - Vol 1 - Pt2 Page Navigation
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TM 5-3810-307-24-1-2
TABLE OF CONTENTS
Chapter
Page
7
Inspection and Maintenance without tools . . . . . . . . . . . . . . . . . .
7-1
Discussion of Inspection & Maintenance
Survey Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1
Visual Inspection System Off . . . . . . . . . . . . . . . . . . . . . .
7-2
Electrical System Inspection. . . . . . . . . . . . . . . . . . . . . . . . .
7-5
Performance Inspection Engine Running . . . . . . . . . . . . .
7-7
Preventive Maintenance Worksheet . . . . . . . . . . . . . . . . . . .
7-9
Chapter Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-9
8
Troubleshooting and Service Procedures . . . . . . . . . . . . . . . . . . . . . 8-1
Troubleshooting Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Understanding System Function . . . . . . . . . . . . . . . . . . . . . . 8-2
A Troubleshooting Example . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Manifold Gauge Set Installation . . . . . . . . . . . . . . . . . . . . . . 8-6
Troubleshooting by Manifold Gauge Set Readings . . . . . . 8-10
Review of Frequent Problem Areas . . . . . . . . . . . . . . . . . . 8-20
Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
9
Refrigerants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Description and Properties of Refrigerants. . . . . . . . . . . . . . 9-1
Changes in Service Procedures. . . . . . . . . . . . . . . . . . . . . . . 9-1
Recovering and Recycling the Refrigerant . . . . . . . . . . . . . . 9-2
Flushing the AC System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Evacuating and Charging the AC System. . . . . . . . . . . . . . . 9-7
Reclaiming a Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Chapter Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Change-1 B-3/(B-4 Blank)


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